/* ─────────────────────────────────────────────
   LAB BOOKING — Appointment Panel
   ───────────────────────────────────────────── */

/* ── Tokens ── */
:root {
    --lbk-popup-overlay-bg:    rgba(10, 10, 14, 0.55);
    --lbk-panel-bg:      #ffffff;
    --lbk-panel-border:  #e4e4e9;
    --lbk-panel-radius:  20px;
    --lbk-panel-shadow:  0 24px 60px rgba(0,0,0,.14), 0 4px 16px rgba(0,0,0,.06);

    --lbk-text-primary:  #0f0f14;
    --lbk-text-secondary:#5a5a72;
    --lbk-text-muted:    #9191a8;

    --lbk-accent:        #4f46e5;          /* indigo */
    --lbk-accent-hover:  #4338ca;
    --lbk-accent-light:  #eef2ff;

    --lbk-surface:       #f8f8fb;
    --lbk-border:        #e4e4e9;

    --lbk-success:       #16a34a;
    --lbk-success-bg:    #f0fdf4;
    --lbk-warn:          #d97706;
    --lbk-warn-bg:       #fffbeb;
    --lbk-error:         #dc2626;
    --lbk-error-bg:      #fef2f2;

    --lbk-radius-sm:     10px;
    --lbk-radius-md:     14px;
    --lbk-font:          -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --lbk-mono:          'SF Mono', 'Fira Code', 'Fira Mono', monospace;
}

/* ── popup-overlay ── */
.lbk-popup-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--lbk-popup-overlay-bg);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0;
    opacity: 0;
    transition: opacity 220ms ease;
}

@media (min-width: 600px) {
    .lbk-popup-overlay {
        align-items: center;
        padding: 24px;
    }
}

.lbk-popup-overlay--visible {
    opacity: 1;
}

.lbk-popup-overlay--visible .lbk-panel {
    transform: translateY(0);
    opacity: 1;
}

/* ── Panel ── */
.lbk-panel {
    position: relative;
    width: 100%;
    max-width: 460px;
    max-height: 92dvh;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--lbk-panel-bg);
    border-radius: var(--lbk-panel-radius) var(--lbk-panel-radius) 0 0;
    box-shadow: var(--lbk-panel-shadow);
    font-family: var(--lbk-font);
    transform: translateY(32px);
    opacity: 0;
    transition: transform 280ms cubic-bezier(.32, .72, 0, 1), opacity 220ms ease;

    /* hide scrollbar but keep scrollable */
    scrollbar-width: none;
}
.lbk-panel::-webkit-scrollbar { display: none; }

@media (min-width: 600px) {
    .lbk-panel {
        border-radius: var(--lbk-panel-radius);
        max-height: 88vh;
    }
}

/* ── Drag handle ── */
.lbk-panel__drag-bar {
    display: block;
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: var(--lbk-border);
    margin: 14px auto 0;
}

@media (min-width: 600px) {
    .lbk-panel__drag-bar { display: none; }
}

/* ── Header ── */
.lbk-panel__header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 20px 20px 0;
}

.lbk-panel__header-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--lbk-radius-sm);
    background: var(--lbk-accent-light);
    color: var(--lbk-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lbk-panel__title {
    margin: 0 0 3px;
    font-size: 17px;
    font-weight: 700;
    color: var(--lbk-text-primary);
    letter-spacing: -.3px;
    line-height: 1.2;
}

.lbk-panel__subtitle {
    margin: 0;
    font-size: 13px;
    color: var(--lbk-text-muted);
}

.lbk-panel__close {
    color:#0f0f14;
    margin-left: auto;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--lbk-border);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 150ms, color 150ms, border-color 150ms;
}
.lbk-panel__close:hover {
    background: var(--lbk-surface);
    color: var(--lbk-text-primary);
}
.lbk-panel__close:focus-visible {
    outline: 2px solid var(--lbk-accent);
    outline-offset: 2px;
}

/* ── Body ── */
.lbk-panel__body {
    padding: 20px 20px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ── Fields ── */
.lbk-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.lbk-field__label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--lbk-text-secondary);
    letter-spacing: .2px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
}

.lbk-field__label-optional {
    font-size: 11px;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    color: var(--lbk-text-muted);
    background: var(--lbk-surface);
    border: 1px solid var(--lbk-border);
    border-radius: 4px;
    padding: 1px 6px;
}

.lbk-field__input {
    width: 100%;
    box-sizing: border-box;
    height: 44px;
    padding: 0 14px;
    font-size: 14px;
    font-family: var(--lbk-font);
    color: var(--lbk-text-primary);
    background: var(--lbk-panel-bg);
    border: 1.5px solid var(--lbk-border);
    border-radius: var(--lbk-radius-sm);
    outline: none;
    transition: border-color 160ms, box-shadow 160ms;
    -webkit-appearance: none;
}
.lbk-field__input::placeholder { color: var(--lbk-text-muted); }
.lbk-field__input:hover:not(:disabled) { border-color: #c4c4d6; }
.lbk-field__input:focus {
    border-color: var(--lbk-accent);
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.lbk-field__input--error {
    border-color: var(--lbk-error) !important;
    box-shadow: 0 0 0 3px rgba(220,38,38,.1) !important;
}
.lbk-field__input--ok {
    border-color: var(--lbk-success) !important;
    box-shadow: 0 0 0 3px rgba(22,163,74,.08) !important;
}

.lbk-field__hint {
    font-size: 12px;
    color: var(--lbk-text-muted);
    min-height: 16px;
}
.lbk-field__hint--error {
    color: var(--lbk-error);
    font-weight: 500;
}

/* ── Primary Button ── */
.lbk-btn {
        background: var(--lbk-accent);
color: #fff;    
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    border: none;
    border-radius: var(--lbk-radius-sm);
    font-size: 14.5px;
    font-weight: 600;
    font-family: var(--lbk-font);
    letter-spacing: -.1px;
    cursor: pointer;
    transition: background 160ms, opacity 160ms, transform 100ms;
    -webkit-appearance: none;
}

.lbk-btn--primary:hover:not(:disabled) {
    background: var(--lbk-accent-hover);
}
.lbk-btn--primary:active:not(:disabled) {
    transform: scale(.985);
}
.lbk-btn--primary:focus-visible {
    outline: 2px solid var(--lbk-accent);
    outline-offset: 3px;
}

/* Disabled / loading state — clearly communicates unavailability */
.lbk-btn:disabled,
.lbk-btn--loading {
    opacity: .55;
    cursor: not-allowed;
    pointer-events: none; /* removes hover flicker */
}

/* Spinner */
.lbk-btn__spinner svg {
    animation: lbk-spin 700ms linear infinite;
}
@keyframes lbk-spin {
    to { transform: rotate(360deg); }
}

/* ── Result area ── */
.lbk-panel__result {
    padding: 0 20px 24px;
    margin-top: 4px;
}

/* ── Result sections / cards ── */
.lbk-result-section,
.lbk-appt-card {
    margin-top: 16px;
    border-radius: var(--lbk-radius-md);
    border: 1.5px solid var(--lbk-border);
    overflow: hidden;
}

.lbk-result-section__title,
.lbk-appt-card__head {
    padding: 12px 14px;
    background: var(--lbk-surface);
    border-bottom: 1.5px solid var(--lbk-border);
}

.lbk-result-section__title {
    margin: 0;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .5px;
    text-transform: uppercase;
    color: var(--lbk-text-muted);
}

.lbk-appt-card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.lbk-appt-card__index {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .4px;
    text-transform: uppercase;
    color: var(--lbk-text-muted);
}

/* ── Data rows ── */
.lbk-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 10px 14px;
    font-size: 13.5px;
    border-bottom: 1px solid var(--lbk-border);
}
.lbk-row:last-child { border-bottom: none; }

.lbk-row__key {
    flex-shrink: 0;
    color: var(--lbk-text-secondary);
    font-weight: 500;
}

.lbk-row__val {
    color: var(--lbk-text-primary);
    text-align: right;
    word-break: break-word;
}

/* ── Badges ── */
.lbk-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
    text-transform: uppercase;
    border: 1.5px solid transparent;
}
.lbk-badge--success { background: var(--lbk-success-bg); color: var(--lbk-success); border-color: rgba(22,163,74,.2); }
.lbk-badge--warn    { background: var(--lbk-warn-bg);    color: var(--lbk-warn);    border-color: rgba(217,119,6,.2); }
.lbk-badge--error   { background: var(--lbk-error-bg);   color: var(--lbk-error);   border-color: rgba(220,38,38,.2); }

/* ── Inline code ── */
.lbk-code {
    font-family: var(--lbk-mono);
    font-size: 12px;
    background: var(--lbk-surface);
    border: 1px solid var(--lbk-border);
    border-radius: 5px;
    padding: 2px 6px;
    color: var(--lbk-accent);
    letter-spacing: -.3px;
    user-select: all;
}

/* ── Empty state ── */
.lbk-empty {
    margin: 20px 0 0;
    padding: 24px;
    text-align: center;
    font-size: 13.5px;
    color: var(--lbk-text-muted);
    border: 1.5px dashed var(--lbk-border);
    border-radius: var(--lbk-radius-md);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .lbk-popup-overlay, .lbk-panel, .lbk-btn,
    .lbk-field__input, .lbk-btn__spinner svg {
        transition: none;
        animation: none;
    }
}